UB – universal beams

914x305x381

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
xybf = 310d = 951tf = 43.9tf = 43.9tw = 24.4tw = 24.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
951mm
Flange widthbf
310mm
Web thicknesstw
24.4mm
Flange thicknesstf
43.9mm
Root radiusr
19mm

Mass and area

Mass per lengthm
381.4kg/m
Cross-sectional areaA
48,590mm²
Outside perimeterP
3,061mm

Strong axis x–x

Moment of inertiaIx
6,96810⁶ mm⁴
Elastic section modulusSx
14,65410³ mm³
Plastic section modulusZx
17,02210³ mm³
Radius of gyrationrx
378.7mm

Weak axis y–y

Moment of inertiaIy
219.110⁶ mm⁴
Elastic section modulusSy
1,41410³ mm³
Plastic section modulusZy
2,24310³ mm³
Radius of gyrationry
67.15mm

Torsion and stability

Torsional constantJ
22,13210³ mm⁴
Warping constantCw
44,83810⁹ mm⁶

Equivalents in other standards